TABLE 1.

Demographic and clinical features of the 105 subjects included in the study sample.

	All subjects	Controls	PreHD	HD
Subjects (n)	105	38	18	49
Sex (Male/Female)	50/55	23/15	3/15	24/25
Age (years), mean (SD)	45.64 (14.94)	41.95 (15.76)	37 (12.46)	51.61 (12.77)
Duration of disease (years), mean (SD)				3.75 (3.13)
UHDRS, mean (SD)	17.11 (21.02)	0.52 (0.87)	2.2 (2.14)	34.83 (18.16)
TFC, mean (SD)	10.80 (3.59)	13 (0)	13 (0)	8.41 (4.01)
Function: -Assessment Score, mean (SD) -Score Incomplete, mean (SD) -Independence in%, mean (SD)	21.26 (5.84) 21.26 (5.84) 89.38 (17.56)	25 (0) 25 (0) 100 (0)	25 (0) 25 (0) 100 (0)	17.31 (6.31) 17.31 (6.31) 78.14 (19.78)
SDMT: -Correct, mean (SD) -Errors, mean (SD)	32.03 (21.58) 0.43 (1.20)	44.81 (15.09) 0.08 (0.39)	45.55 (17.25) 0 (0)	13.54 (14.24) 0.96 (1.71)
VFT-Total Correct, mean (SD)	17.97 (10.78)	26.5 (8.71)	23.64 (6.00)	9.09 (5.34)
STROOP Color Naming: -Correct, mean (SD) -Errors, mean (SD) -Self-corrected, mean (SD)	58.38 (22.70) 0.23 (0.73) 0.46 (0.80)	76.62 (12.46) 0.08 (0.27) 0.35 (0.80)	67.82 (12.16) 0.64 (1.21) 0.82 (0.87)	40.31 (17.60) 0.22 (0.75) 0.44 (0.76)
STROOP Word Reading: -Correct, mean (SD) -Errors, mean (SD) -Self-corrected, mean (SD)	64.96 (25.93) 0.28 (1.37) 0.21 (0.66)	84.38 (14.32) 0.04 (0.20) 0.15 (0.46)	81 (13.01) 0.09 (0.30) 0 (0)	42.97 (18.79) 0.55 (2.00) 0.32 (0.87)
STROOP Interference: -Correct, mean (SD) -Errors, mean (SD) -Self-corrected, mean (SD)	34.48 (16.43) 1.13 (2.59) 1.39 (2.11)	44.68 (9.43) 0.76 (2.55) 0.72 (0.94)	46.55 (8.27) 0.45 (1.04) 0.73 (0.90)	18.33 (10.74) 1.83 (2.35) 2.36 (2.87)
PBAs: -Depression, mean (SD) -Irritability/Aggressiveness, mean (SD) -Psychosis, mean (SD) -Apathy, mean (SD) -Executive Function, mean (SD)	4.24 (5.91) 1.97 (3.84) 0.28 (1.26) 0.86 (2.16) 0.51 (1.90)	1.73 (3.29) 1.12 (2.69) 0 (0) 0.19 (0.80) 0.04 (0.20)	1.2 (2.04) 0.1 (0.32) 0 (0) 0 (0) 0 (0)	6.97 (6.90) 3.14 (4.69) 0.57 (1.75) 1.6 (2.83) 1 (2.63)
MMSE, mean (SD)	25.91 (4.70)	29.57 (0.85)	30 (0)	23.70 (4.67)